JPS58191257A - Apparatus for controlling displacement motion of guide bar in warp knitting machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for controlling the displacement movement of a guide bar in a warp knitting machine, etc.
elements arranged in series pressed against each other via a displacement cam surface provided on at least one front face and an adjustment affecting the position of said cam surface for the curvature of the longitudinal distance of adjacent elements; #! a combination transmission device with an R position, and a part of the adjustment device is a pressing force movable along the cam surface of one element and supported by an adjacent element via an intermediate member. West German patent application P 311768 characterized in that it has one O-La each.
3.6-26 1u for controlling the displacement movement of a guide bar in a warp knitting machine, etc. according to any one of claims 1 to 8 of (Japanese Patent Application No. 57-75044)
It concerns ll.

The advantage of said patent application is that the adjusting device can be adjusted with little friction and that the entire transmission device in combination with the guide bar is arranged in a manner that presses against each other. This results in a higher operating speed when the adjusting device is actuated compared to conventional combination transmissions in which the guide bar leaves the combination transmission each time.

The underlying problem of the invention is to improve the design of a device of the type mentioned at the outset, making it possible to create a wide variety of patterns.

This task is achieved according to the invention by means of an adjusting device which is actuated temporarily within the working cycle to cause an underlapping displacement and which is actuated temporally staggered within the working cycle to cause an overlapping position. at least one regulating device.

In this case, the adjusting device can be controlled in a temporally staggered manner within one operating cycle, so that an underlapping displacement and an overlapping displacement are obtained, both of which are integrated into the handle. This combination transmission allows the magnitude and direction of the underlapping displacement to be varied. The selection of the regulating device to be operated in each case is
This is possible using a Jacquard device, electrical program control, etc. The respective correct operating point can be easily provided by the main shaft of the machine.

The overlapping displacement adjustment device is configured in substantially the same way as the underlapping displacement adjustment device. In particular, the overlapping displacement adjustment device likewise has a pressure roller so that it can be operated with some friction under load.

Preferably, at the end of the combination transmission opposite the guide bar, an overlapping displacement adjusting device adjusts the bearing surface of the first underlapping displacement adjusting device. In this way, it is possible to leave the other combined transmissions unchanged.

In particular, a bearing surface is provided at the element which is moved in the transmission adjustment direction by means of a pressing force of the overlapping displacement adjustment device. Therefore, the overlapping displacement adjustment device has in fact the same structure as the underlapping displacement adjustment device. This connection allowed the production to be integrated into one.

In a further embodiment, the bearing surface is formed by an inclined front surface of a slide of an overlapping displacement adjustment device which is movable obliquely to the gear adjustment direction. Such an adjusting device can be easily retrofitted into existing combination transmissions.

In a preferred embodiment, at least one of the underlapping displacement adjusting devices simultaneously acts as an overlapping displacement adjusting device by temporarily operating within the operating cycle to cause an underlapping displacement and/or an overlapping displacement. It is also formed to work. In this case, the overlapping displacement I
No additional adjustment device of the temple is required.

In terms of control engineering, it is possible to easily perform two operations within an operating cycle.

It is very advantageous for both the underlapping displacement adjustment device and the overlapping displacement adjustment device to be made operable via a program-controlled coupling. Such program-controlled couplings can be operated by internal control commands, each of which moves the associated regulating device. It is possible to form any desired pattern using a program for both underlapping displacement and A-bar wrapping displacement.

In other embodiments, the overlapping displacement adjustment device can be operated via a control disk or a control chain. In this case, the pattern formation by overlapping displacements is limited by the shape of the control mlf isk or control chain used in each case, but in many cases this is sufficient.

Furthermore, in the case of continuous working cycles, it is advantageous to design the overlapping displacement adjusting device so that it can operate simultaneously with the underlapping displacement adjusting device in order to maintain the direction of the A-bar wrapping displacement. This allows the overlapping displacement adjustment device to
Return to the starting state of the previous operating cycle. Due to this adjustment movement, the actual underlapping displacement is smaller than the displacement set by the underlapping displacement adjusting device.

In the following, the invention will be explained in detail with reference to preferred embodiments shown in the drawings.

FIG. 1 shows the above-mentioned German patent application P 3117683,
6-26, Figure 3. Matching parts are indicated with the same number.

A guide bar 201 with a guide needle 202 is biased by a spring 203. One end of this spring is held in a bearing 204 fixed to the knitting machine body, and the other end acts on the guide bar 201 via a fixture 205. The bolt 206 is connected to the guide bar 201 via a ball joint 207, and to the combination transmission M21 via a ball joint 208.
0 free end 209.

The combined transmission @ 210 has seven elements 211 to 211 that are movable in the longitudinal direction in a guide 218 fixed to the knitting machine body. Both ends 22 of element 211
0.221 has a displacement cam surface 219, and displacement is performed by this displacement cam surface. A double pressure roller 222 is in contact with the cam surface, and this pressure roller is in contact with the other one.
It is supported by a shaft 235 along with two pressing rollers 234 . An eccentric O-rad 225 abuts this shaft, and this eccentric rod is connected to a ring 226 surrounding an eccentric plate 227 . The core is fixed to the shaft 228.

The pressure roller 234 rolls along the roller 233. The rolling surface simultaneously acts as a displacement cam surface and is inclined in the opposite direction to the displacement cam 219. Eccentric plate 2
When 21 rotates from below to the illustrated position, both pressure rollers 222 and 234 move upward, and element 217
Move to the left by T. In this case, ■ indicates one needle pitch of the needle bar.

The above portion forms an underlapping displacement adjustment device 236. Other underwrapping displacement adjustment equipment @237
．． 238.239.240 and 241 work similarly.

These adjusting devices differ only in the amount of displacement they cause, with the adjusting device 237 being 1611 and the adjusting device 238 being 8.
T, adjustment device 239 is 41, adjustment device M240 is 2TS:
GLL wave device 2411 king. Therefore, it is possible to set the displacement of the guide bar between 11-47T.

Furthermore, an overlapping displacement adjustment device 242 is provided. This device has the same structure as the underlapping displacement adjustment device described above. However, the pressure roller of the overlapping displacement adjustment device is fixed element 2
As a result, the overlapping displacement adjustment device @ 242 is activated, and the bearing surface 243 of the movable cable 211, that is, the bearing surface of the first underlapping displacement adjustment device 241, is be moved. Thus, the adjustment device 242 described above is capable of producing 10 displacements, which corresponds to one needle pitch in the overlapping position.

All of the shafts 228 are connected to a shaft 245 that rotates at the rotation speed of the main shaft.
via couplings 246-252, respectively. All of the couplings receive electrical control signals from program control mechanism 253. When such a control signal is issued, each shaft 228 is driven through a rotation angle of 180° in the direction of arrow U. As a result, the pressing force 0-ra moves from below to above, or in the opposite direction.

In FIG. 5, in each operating cycle corresponding to a 360° rotation of the spindle, for example, a period A of 0° to 110°.
For example, 185
It is shown that overlapping occurs in period B of ˜220 m. The actuation of the underlapping displacement adjustment devices 236-241 by the associated couplings 246-251 therefore takes place at or immediately before the start of the underlapping period A, ie at point Ao. On the other hand, the operation of the overlapping displacement adjusting device 242 by the coupling 252 is as follows.
At the start of the overlapping period F3, that is, at point R,
It is carried out at or just before. The operating points are therefore offset from each other by approximately 185°.

In FIG. 4, a knitting needle 254 and a fold line 255 are shown, and this fold line represents the locus of the guide needle 201. In this example, underlapping displacement adjustment devices 240 and 241 are A.

, resulting in three underlapping displacements. Also, the overlapping displacement adjustment device 242 is activated at time Bo, resulting in an overlapping displacement 10. In the next operating cycle, it moves according to the desired pattern. When the overlapping displacement in the next working cycle should proceed to the right,
A-bar wrapping displacement adjustment KM 242 returns at the next BO. On the other hand, if in the next working cycle the overlapping displacement is to continue in the same direction, at the time of BO the overlapping displacement is The displacement adjustment device @ 242 should be activated anew already at the time Ao. This movement of the overlapping displacement adjusting device @242 at the time of Ao is:
Adjust the underlapping displacement caused by the adjustment devices 9236-241 by 1 below the desired underlapping displacement.
It is corrected by increasing by 0.

The embodiment of FIG. 1 can be implemented without making a strict distinction between the adjustment devices w236 to 241 for underlapping displacements and the adjustment devices @242 for overlapping displacements. In addition, the adjustment device [242 is also programmed for the underlapping displacement at time Ao.

It can also be operated to be utilized for overlapping displacements of the time points.

In the embodiment shown in FIG. 2, the structure common to that shown in FIG. 1 is a dog. The reference numerals of the embodiment of FIG. 1 plus 100 are used for common parts. The difference from FIG. 1 is that the first underwrapping displacement adjustment device H3
The only difference is that the rolling position 333 of the pressure roller 41 is formed by the inclined front surface of the slider 356 of the overlapping displacement adjustment device 342, which is movable obliquely with respect to the direction of movement of the transmission. The slider carries a pressure roller 357 that supports a control disk 358. The control disk is on a shaft 359 that rotates at 1/4 the number of revolutions of the J-axis and has four cams 360. That is, an overlapping displacement of one needle pitch <1[+> is performed during each operating cycle.

In the previous embodiment, an overlapping displacement was performed in each actuation cycle, whereas in the first
In the illustrated embodiment, it is also possible to interrupt the automatic overrun pink displacement, allowing the bundling and pattern threads to float.

Therefore, with the present invention, not only underlapping displacements but also overlapping displacements can be carried out any number of times or not at all, and in any direction if the machine speed is high. It is. In the embodiment of FIG. 1, the overlapping displacement adjusting device 24
2 at the end of the combination transmission,
It may be arranged at any other position.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of a first embodiment of the device according to the present invention, FIG. 2 is a schematic side view of the second embodiment, and FIG.
Figure 4 shows underlapping and overlapping during one operation cycle, and Figure 5 shows one operation with underlapping time and overlapping time. It is a diagram of 119 cycles. Explanation of symbols 210.310... Combination transmission device 211
......Elements 236-241.336-341...Underwrapping displacement adjustment device 242.
342...Overlapping adjustment device 243
．． 333... support

Claims (1)

[Claims] 1. Elements that are guided in the longitudinal direction and pressed against each other via a displacement cam surface provided on at least one sprouting surface and arranged in succession, and a change in the distance in the longitudinal direction of adjacent elements and an adjusting device for influencing the position of the cam surface for the cam surface, at least a part of which is movable along the cam surface of one element and an intermediate member. In a device for the control of the displacement movement of a guide bar in warp knitting, each having one pressure D-ra supported on an adjacent element via a (23B-241: 336-341)
) and at least one adjusting device (242: 342) which is activated in a time-staggered manner within the operating cycle in order to cause overlapping displacements. 2. The device according to claim 1, wherein the overlapping displacement adjustment section wt (242) is configured similarly to the underlapping displacement adjustment device (236-241). 3. Overlapping displacement adjustment device (242:342
) adjusts the bearing surface (243, 333) of the first underlapping displacement adjustment device (2, 41: 341) at the end opposite the guide bar in the combined transmission [(210; 310). *@ according to claim 1 or 2. 4. Element (211) moved in the transmission adjustment direction by the pressing roller of the overlapping displacement adjustment device (242)
Device according to claim 3r14, characterized in that there is a bearing surface (243) at ). 5.71 - Claim 1, characterized in that the bearing surface (333) is formed by the inclined front surface of the slider (356) which is movable transversely to the transmission adjustment direction of the bar wrapping displacement adjustment device (342). The device according to item 3. 6. Underwrapping displacement adjustment device @ (236-24
2) is actuated simultaneously with the overlapping displacement adjustment device by being temporarily actuated within the operating cycle to cause an underlapping displacement and/or an overlapping displacement. A device according to scope 1. 7. Underwrapping displacement adjustment device @ (236-24
1) Overlapping displacement adjustment device! (242:
342) is the program controlled coupling (2).
46:252). 8. Claims 1 to 6, characterized in that the overlapping displacement adjustment device @ (342) is actuated via a control disk (358) or a control chain.
Apparatus according to any of paragraphs. 9. During successive working cycles, the overlapping displacement adjusting device (242: 342) is operated simultaneously with the underlapping displacement adjusting device (236-241: 336-341) to maintain the direction of overlapping displacement. A device for controlling displacement movement according to any one of claims 1 to 8.